Wan Interfaces - Cisco Catalyst 2000 Configuration Handbook

78 Cisco LAN Switching Configuration Handbook
Distribution_Switch_A (config-if)# no shut
Distribution_Switch_A (config-if)# end
Distribution_Switch_A # copy running-config startup-config
An example of the configuration for Access_Switch_A (a 3560) follows:
Access_Switch_A (config)# interface gigabitethernet 0/1
Access_Switch_A (config-if)# channel-group 1 mode on
Access_Switch_A (config)# interface gigabitethernet 0/2
Access_Switch_A (config-if)# channel-group 1 mode on
Access_Switch_A (config-if)# end
Access_Switch_A # copy running-config startup-config

5-4: WAN Interfaces

The Catalyst 6500/7600 series switches offer support for WAN interfaces to be added to
the switch chassis. WAN interfaces are only known to the Layer 3 switching processor
and must be configured from an interface. The 6500 series switch supports the enhanced
FlexWAN card, which provides support for a variety of WAN Port Adapters for WAN
connectivity.
In addition to the enhanced FlexWAN module, the 6500 series switch offers SPA
Interface Processor modules (SIP) that provide support for the shared port adapters.
Recommended practice dictates the use of SIP/SPA Modules instead of FlexWan or
enhanced FlexWan because new features and solutions are being developed on these
platforms.
Configuration
WAN interfaces enable users to connect to remote services from the Catalyst switch chassis.
Note This section offers an abbreviated look at configuring some basic parameters for
Layer 3 switching using these interfaces. For a more detailed look at these interfaces and
WAN connectivity, see the "Further Reading" section at the end of this chapter.
Each of the following sections details the steps to configure the different WAN interfaces
for basic network connectivity.
Configuring an Enhanced FlexWAN Interface
The Enhanced FlexWAN module for the 6500 series is similar to the modular router
series. This module allows for the installation of a limited number of WAN port adapters
to be used by the Layer 3 switching processor for WAN connectivity. The Enhanced